Upholstery spring construction.



L. A. YOUNG.

UPHOLSTERY SPRING CQNSTRUCTION.

APPLICATION FILED NOV. 4. 1913.

Patented Apr. 27, 1915.

3 $HEETS-SHEET I.

L. A. YOUNG. UPHOLSTERY SPRING CONSTRUCTION.

APPLICATION FILED NOV. 4. I913.

Patented A r. 27, 1915.

3 SHEETSSHEET 2- wi/lmaooao azoy wm' L. A. YOUNG.

UPHOLSTERY SPRING CONSTRUCTION.

APPLICATION FILED NOV. 4, I913.

Patented Apr. 27, 1915.

3 SHEETS-SHEET 3- Wibnwm mam LEONARD A. YOUNG, OF DETROIT, IIEICHIG'AN.

"UPHOLSTERY SPRING CONSTRUCTION.

mam.

Specification of Letters Patent.

Patented Apr. 2'7, 1915.

Application filed November 4, 1913. Serial No. 799,108.

the seat retains its shape even'under heavy service.

A further feature of the construction is a reinforcement of the bodsprings by auxiliary springs so arrange as to trans mit any local loadexcess throughout the structure and at the same time reinforce the bodysprings in cushioning against and resisting further deflection.

The invention consists in the matters hereinafter set forth and moreparticularly pointed out in the appendedclaims.

In the drawings, Figure 1 is a plan view of a spring seat structure thatembodiesfeatures of the invention with the upholstery covering theretoand the supports for the latter removed to give clear view; Fig. 2 is aview in end elevation, partially broken away, of the parts shown in Fig.1, with the addition of an edge roll and the support and securing meansof the latter' Fig. 3 is a fragmentary view, partially broken away andpartially in plan, featuring the details of support of the edge roll;Figs. 4:, 5, 6 and 7 are views in detail of various methods of securingthe edge roll in place; Fig. 8 is a View in detail, enlarged and insection,

showing the method of securing the roll supporting members; Fig. 9 is aview in detail of a preferred form of arch reinforcing spring; and Fig.10 is a view in detail and in'end elevation of a part of 'a springconstruction showing a modification of the auxiliary arch spring.

ferring to the drawings, abuse frame .1.

of any suitable type afl'ords support for up- .right coiled body. s ru2, the latter. be ng secured in position yauy suitable fastenlng means.A series t -shaped bra s31 con.- .nect the corresponding intei m r h t@9115" s body springs a nst'la all dectl and transfer in a measurevertical ,stress from one spring to another. The U-strips are readilysecured as desired by clenching down their flanges 3 over the insertedsprlng turns but these may be replaced by other forms of braces that aresuitably clipped or otherwise connected to the coils. I

As another detail of good mechanical construction the braces whichconnect the intermediate springs are not only in short lengths anddisposed in pairs but are arranged on opposite sides of the springs inalternation so that there is less tendency of the springs to cantor tiltwhenunder load.

At the ends of the structure the body springs are preferably connectedby a pair of braces 4 that run for the entire width of the structure.These may be U-shaped and clenched upon the coils as are the others or,like the others, may be formed of any suitable rods or strips. Similarlythe marginal strips 5 along the front and back of the springs arecontinuous throughout the length of the structure and may be single asindicated or disposed in pairs as are the end strips 4 to meet variousrequire ments of service. Where the structure is of considerable width,as for use on a coach seat, it is preferable to reinforce the centerbody springs with a pair of braces 6 that 13.18 clamped on theintermediate turns of the springs or suitably clipped thereto accordingto the nature of the brace.

Auxiliary springs 7 extend across the structure, the end turns of thesprings being suitably connected to the braces which connects theintermediate coils. In the preferred form the auxiliaries are in theform of arches that may have considerable camber as indicated in Fig. 2or may be substantially straight as indicated in Fig. 10,

with sprin coils 8 near each end, the porupward displacement. The archpreferably .overliesthe intermediate braces 3 at least for a portion ofits length. Where the seat is formed of two sections as indicated in '1or more properly speaking with the loo intermediate pairs of braces 6,the auxiliaries 7 engage the braces 6 alternately from opposite sideswhereby the load is efiectively prevented from imposing any side strainupon the body springs from the auxiliaries. If desired, other crossauxiliaries 10, as indicated in Fig. 1, may be used and these may beeither arched or straight.

A hair roll 11 consisting of an outer casing 12 stufi'ed with suitablematerial extends around the margin of the seat, resting upon sets oflight resilient rim wires 12. The latter are held in spaced relation onthe tops of the body springs as for example, by tongues or lips 13struck-up from flat metal strips 14 that span the top coils. The casing12 is anchored to the rim wires and the outer marginal member 15 of themain BtI'UCtUIG by any suitable clip or stay. Such fastening meansmay-be in the form of figure 8 clips 16 that are hooked over weltcordsor wire 17 sewed into the margins of the casing cover 12. Or thefastening means may consist of double ended clips whose body portions 18are thrust through theroll and whose downturned arms 19 are hookedaround the outer main member 15 and inner rim wire 12 as indicated inFig. 5. Another form of fastening consists of a welt wire 20 sewed intothe depending margins of the casing 12 with depending off-sets 21 atintervals that may be bent around the main and auxiliary rim wires. Ifgreater strength and durability is required an outer covering 22 mayoverlie the casing of the roll and be provided with a welted or wirededge 23 that is secured by suitable clips to the supporting rim w'res.

In the use of the structure as shown any load that is imposed thereon iscarried at the edges of the-structure by the hair roll and is supportedin such manner that the upholstery is not permanently deformed evenunder long use. As the upper portions of the inner body springs arefreeto be depressed independently, a soft cushioning effect is produced.Under severe shock the load is resisted in part by the auxiliary springswhich transmit it throughout the structure so that the load as thesprings approach full compression is practically carried by everyspring. Thus any severe local shock is transmitted to the entirestructure and the load is prevented from compressing the springs fullyagainst the base.

The body springs as shown herein, are of v the upright hour-glass type'but they may be of any'preferred form and may be built up of two or moresprings of different gages in superposed relation,such arrangement beingcommon in seats of standard construction that do not employ theauxiliaries. I

Obviously, changes in the details of con struction may be made withoutdeparting from the spirit of my invention and I do not care to limitmyself to any particular form or arrangement of parts.

What I claim is 1. An upholstery spring structure comprising uprightbody springs secured in fixed relation, auxiliary rim wires supporte bythe outer body springs, upholstery resting upon and supported solely bythe auxiliary rim wires, and auxiliaryspring members supported on thelower portions of the body springs and adapted to cooperate with thebody springs when the latter are partially depressed.

2. An upholstery spring structure comprising upright body springssecured in fixed relation, auxiliary rim wires supported by the outerbody springs, upholstery resting upon and supported solely by theauxiliary rim wires, and braces connecting intermediate coils of thebody springs and transmitting the load imposed by the auxiliary rimwires throughout the body springs.

3. A spring structure comprising a base, upright body springs securedthereon, auxiliary rim wires supported on the outer body springs, anupholstery roll supported on and secured to the auxiliary rim Wires, theroll and auxiliary rim wires transmitting local pressure along theentire margin of the structure and auxiliary spring membersspanningportions of the structure and supported near their ends by the lowerportions of the body springs.

4. A spring structure comprising a base, upright body springs securedthereon, spring rim wires resting on the outer turns of themarginal-body springs, upholstery rolls secured to. and supported by theauxiliary rim wires whereby local load along the margin is transmittedthroughout the length of the structure to the body springs, bracesconnecting the intermediate coils of the body springs and arch auxiliarysprings spanning the intervals between certain of the body springs tothe intermediate coils of which the end portions of the auxiliaries aresecured.

5. A spring structure comprising a base, upright body springs secure:thereon, braces connecting intermediate coils of the body springs fortransmitting pressure from one 'to the other, auxiliary springs spanningthe intervals between certain of the body springs supported by the lowerturns of the of contiguous body and auxi iary springs.

l and transmittini grantee b. A structure comprising a base,

body springs sup&ported thereon, auxiliary spnngs supporte near the endsby lower turns of the body springs braces connecting the intermediateturns oi the body springs load imposed by' the auxrh-aii springs troughout the lower turns of e body springs, auxiliary rim wires oncertain of the body springs for transmitting load throughout t e upperturns of the contiguous body springs an upholstery rolls secured on andsupported by the auxiliary rim wires 7. In a sprin structure, means fortransmitting load rough the upper turns of certain of the body springscomprising aux;- iliary rim wire members ()ai ing on the upper turns ofcertain of the b y s rings, an upholstery roll with casing of exiblefabric resting on the auxiliary rim wire members,

' and means connecting the flem'ble casing to the outer rim wire memmrs.

8. In a sprin structure, means for transmitting load t rough the upperturns of certain of the body springs comprising aux'-.

iliary rim wire members t urnsof certainot the be y s rin an n holsteryroll with l w of exi le fabric resting on the auxiliary rim wiremembers, reinforcing marginal members secured in the flem'ble casing andmeans for securing said members to ad'acent rim wire members. 9. In aspring structure havingupright body springs, means tor transnnttmg loadto the marginal body springs comprising spacing members a 1- the upperturns 3mg on the upper 1zontally disposed rising a base,

mounte thereon, horrace members connecting opposite sides of theintermediate turns of certain of the body springs, horizontally disposedbrace members connecting intermediate turns of the other body springs insubstantially the plane of the braces disposed in pairs, aum'lia archsprings secured near their extremitles to the lower turns of certain ofthe body springs and supported,

thereon by the pairs of braces, the auxilia springs when under loadcooperating wig all the braces to transmit ressure to the lower turns ofall of the y springs, auxiliary rim wire members secured in spacedrelation on the u per turns of the marginal body springs, an anupholstery roll resting on the rim wire members to which it is secured.

In testimong whereofl afix my signature two witnesses.

in presence 0 Lnounnn n YOUNG.

Wimesses:F B

time An 0. n. smm@

